Before using the explosion-proof chain electric hoist for lifting and lowering, several key components and safety aspects should be checked to ensure safe and efficient operation. Here is a detailed checklist:

General Inspection

Power Supply:

Ensure that the power supply to the electric hoist is stable and within the specified voltage range.

Verify that the power switch is in the off position before starting the inspection.

Appearance and Structure:

Inspect the outer shell of the hoist for any cracks, dents, or rust.

Ensure that all fasteners are tight and that there are no loose parts.

Check for any signs of oil leakage or abnormal wear.

Chain and Load Hook

Chain Condition:

Inspect the chain for wear, rust, or kinks.

Ensure that the chain links are not stretched or damaged.

Load Hook:

Verify that the load hook is free of cracks, deformations, or wear.

Ensure that the hook latch is functioning properly and securely locks the load in place.

Brakes and Safety Devices

Brake Performance:

Test the brake to ensure it engages smoothly and stops the load within a reasonable distance.

Listen for any abnormal noises or vibrations during braking.

Safety Devices:

Check that all safety devices, such as limit switches and emergency stop buttons, are functioning correctly.

Ensure that there are no obstructions or damage to these devices.

Electric and Control Systems

Controller Function:

Test the controller to ensure all buttons and switches are working properly.

Verify that the hoist responds correctly to control commands.

Electrical Connections:

Inspect all electrical connections for tightness and corrosion.

Ensure that there are no exposed wires or potential electrical hazards.

Operational Testing

Load Testing:

Before using the hoist for a full load, conduct a test lift with a small load to ensure smooth operation.

Gradually increase the load to the hoist's rated capacity to verify its lifting ability.

Observation During Operation:

Monitor the hoist's operation closely for any abnormal noises, vibrations, or temperature rises.

Stop the hoist immediately if any unsafe conditions are observed.

Additional Safety Precautions

Environmental Conditions:

Ensure that the operating environment is free of obstacles and hazards.

Verify that the temperature and humidity are within the hoist's specified operating range.

Operator Training:

Ensure that the operator is familiar with the hoist's operating procedures and safety regulations.

Provide necessary training and supervision to ensure safe operation.

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